20/28
Building Technologies Division
CC1N7785en
20.11.2017
Connection diagrams
(for circuitry variants, see
Connection examples
)
LOK16...
H
N
C
D
A
L
EK2
AL
21
1
AS
2
1(3)
3
W
R
4
5
6
7
t6
B
A
t7
BV3
BV1
Z
SA
15 16 17 18
a
z
M
20
19
9
LR
t4
t3
TS
A
t5
t1
t11
a
z
m
11 10
8
22
B
1
v
7785a01/0908
LK
Si
LP
+
14
12
13
t1
0
SB
P
t3´
t3n
24
m
t13
t12
t1
6
RAR9...
M1
M2
BV2
Note!
In applications involving air heaters (WLE), or in the case of oil burners with a
maximum throughput of > 30 kW/h, removing wire link
B
is not permitted.
Caution!
Do not press lockout reset button (EK...) for more than 10 seconds!
Connect the safety valve as specified in the diagram provided by the burner
manufacturer.